Persian Gulf : report to the Majority Leader, United States Senate, from Senator John Glenn and Senator John Warner on their trip to the Persian Gulf, May 27-June 4, 1987./John Glenn; United States. Congress. Senate. Committee on Armed Services.; Washington : U.S. G.P.O. : For sale by the Supt. of Docs., Congressional Sales Office, U.S. G.P.O., 1987.